Which of the protein is involved in the transport of organic compounds through phloem?
(a) Protamine
(b) p-Protein
(c) Myosin
(d) Glutelin

Options

A. Protamine
B. p-Protein
C. Myosin
D. Glutelin

Answer

To determine which protein is involved in the transport of organic compounds through phloem, we need to analyze each option provided:

1. **Understanding Phloem Function**: The phloem is a type of vascular tissue in plants responsible for the transport of organic compounds, particularly sugars produced during photosynthesis, from the leaves to other parts of the plant.

2. **Evaluating the Options**:
- **(a) Protamine**: This is a type of protein that is primarily found in the sperm of fish and is not involved in the transport of organic compounds in plants.
- **(b) p-Protein**: This protein is known to be involved in the phloem. It plays a crucial role in the transport of organic compounds and also helps in sealing wounds in the phloem tissue.
- **(c) Myosin**: This is a motor protein found in muscle cells of animals and is not related to plant transport systems.
- **(d) Glutelin**: This is a storage protein found in seeds and does not play a role in the transport of organic compounds in phloem.

3. **Conclusion**: Based on the analysis, the correct answer is **(b) p-Protein**, as it is specifically involved in the transport of organic compounds through the phloem and also plays a role in wound sealing.

### Step-by-Step Solution:
1. Identify the function of phloem in plants.
2. Analyze each option to determine its relevance to phloem function.
3. Conclude that p-Protein is the correct answer due to its role in organic compound transport and wound sealing.